Individual holder
FRETZ ROBERT J
US·2 granted patents·1 pending application·17 citations·filing 2011–2012
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
3 records- 0182US8605927B2Hearing aid positioning system and structureFRETZ ROBERT J·Filed 2011·Granted Dec 10, 2013·9 cites·22 claims
- 0281US8767987B2Ear contact pressure wave hearing aid switchFRETZ ROBERT J·Filed 2011·Granted Jul 1, 2014·8 cites·21 claims
- 0338US2012237068A1Soft Concha Ring Behind-The-Ear Hearing AidFRETZ ROBERT J·Filed 2012·Application pending·0 cites
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